TV chef Delia Smith has branded a pro-Brexit poster unveiled by Nigel Farage as "anti-human" in the final live EU referendum debate before polls open on Thursday.
The poster, which showed hundreds of migrants queuing to get into Europe with the slogan "Breaking Point", was condemned by politicians from across the political spectrum.
And it was the focal point of the first section of debate during a Channel 4 rotating panel discussion show looking at the referendum's key issues.
Smith, who was wearing a T-shirt with the slogan "let's be havin' EU", was in the audience and she was asked by host Jeremy Paxman what she thought about the tone of the referendum campaign.
She said: "It's got darker and darker as the time has gone on and I really think its darkest moment was when we saw the poster.
"When I looked at the poster and saw the caption I didn't think it was just offensive, I thought it was anti-human.
"That's how I felt about it."
Labour's Yvette Cooper, who was part of the first discussion panel with former Tory MP Louise Mensch, former Tory minister Ann Widdecombe and rapper Akala, joined in the offensive against the poster.
She said: "What the Leave campaign have done is push lies and also pit human beings against other human beings.
"That is what is wrong, immoral and just not British."
But Mensch hit back and said: "We are sitting up here regretting the tone and yet I am trying very hard not to say anything nasty about people on the Remain side who I genuinely believe are campaigning for what they believe is right and proper and best for Britain.
"I hope Yvette will consider if she can perhaps stop saying that we are pitting humans against humans and acting with vile hatred ... at this stage of the argument, haven't we had all of that stuff out?"
She also stressed that "person after person after person" from the Leave campaign had condemned the poster.